#include "stdafx.h"
#include "hnum_slucmn.h"

namespace harlinn
{
    namespace numerics
    {
        namespace SuperLU
        {
            /*
            int lsame_(const char *ca, const char *cb)
            {
            //  -- LAPACK auxiliary routine (version 2.0) --   
            //      Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   
            //      Courant Institute, Argonne National Lab, and Rice University   
            //      September 30, 1994   
            //
            //  Purpose   
            //  =======   
            //
            //  LSAME returns .TRUE. if CA is the same letter as CB regardless of case.   
            //
            //  Arguments   
            //  =========   
            //
            //  CA      (input) CHARACTER*1   
            //  CB      (input) CHARACTER*1   
            //          CA and CB specify the single characters to be compared.   
            //
            //  ===================================================================== 
            //  

                // System generated locals 
                int ret_val;
    
                // Local variables 
                int inta, intb, zcode;

                ret_val = *(unsigned char *)ca == *(unsigned char *)cb;
                if (ret_val) 
                {
	                return ret_val;
                }

                // Now test for equivalence if both characters are alphabetic. 

                zcode = 'Z';

                // Use 'Z' rather than 'A' so that ASCII can be detected on Prime   
                //  machines, on which ICHAR returns a value with bit 8 set.   
                //  ICHAR('A') on Prime machines returns 193 which is the same as   
                //  ICHAR('A') on an EBCDIC machine. 

                inta = *(unsigned char *)ca;
                intb = *(unsigned char *)cb;

                if (zcode == 90 || zcode == 122) 
                {
	                // ASCII is assumed - ZCODE is the ASCII code of either lower or   
                    //  upper case 'Z'. 
	                if (inta >= 97 && inta <= 122) 
                    {
                        inta += -32;
                    }
	                if (intb >= 97 && intb <= 122) 
                    {
                        intb += -32;
                    }

                } 
                else if (zcode == 233 || zcode == 169) 
                {
	                // EBCDIC is assumed - ZCODE is the EBCDIC code of either lower or upper case 'Z'. 
	                if (inta >= 129 && inta <= 137 || inta >= 145 && inta <= 153 || inta >= 162 && inta <= 169)
                    {
	                    inta += 64;
                    }
	                if (intb >= 129 && intb <= 137 || intb >= 145 && intb <= 153 || intb >= 162 && intb <= 169)
                    {
	                    intb += 64;
                    }
                } 
                else if (zcode == 218 || zcode == 250) 
                {
	                // ASCII is assumed, on Prime machines - ZCODE is the ASCII code plus 128 of either lower or upper case 'Z'. 
	                if (inta >= 225 && inta <= 250) 
                    {
                        inta += -32;
                    }
	                if (intb >= 225 && intb <= 250) 
                    {    
                        intb += -32;
                    }
                }
                ret_val = inta == intb;
                return ret_val;
    
            } // lsame_ 
            */
        };
    };
};